[chamakits]

It’s an american idiom. Just means they are hard working folks.

[gruez]

It is? To me it only means "the entertainment industry". This seems to be confirmed by https://en.wiktionary.org/wiki/show_business

[DoctorOW]

"Show business" means the entertainment industry. "Hardest working in show business" is generic.

[gruez]

Source for this? Searching for "Hardest working in show business" without quotes turns up something relating to an entertainer, and searching it with quotes also returns a bunch of entertainment-related matches.

[sosborn]

> Source for this?

American culture for the past 40 years. Seriously, this is a common idiom.

[MikusR]

Can you provide any sources? Google only gives results about a single singer.

[sosborn]

I'm a native speaker that grew up and lives in the U.S. People use it all the time. I don't have any scientific research papers available to show you, but I promise you - this is a common expression.

[optimiz3]

What I mean is WireGuard seems like a sincere engineering effort. I'm not sure why it would be called show business which implies fakery.

[danachow]

You’re missing the boat on this one. It’s an idiom, not taken literally.

[C19is20]

Misunderstandings about water-transport timetables in 3...2...

* i'll add that whare i am 'the hardest working folks in show business', is often a compliment: we have our backstage (offices etc), and front of house (dealing with customers) where we have our smiley faces plastered on.